But, of course, life carried on as normal and there were plenty of other events and incidents in Edinburgh in 1952. Anyone hoping that trams will eventually be a way to sort out traffic congestion might want to note that in July the city centre saw a spot of tram congestion, which led to major traffic jams along Princes Street. The delays were caused by roadworks – sound familiar? The year also saw the official inauguration of the new colliery at Bilston Glen. Following the coronation, the city also got its first delivery of the new Royal Mail post boxes, decorated with the now famous EIIR crest for Elizabeth II. The post box was unveiled by Bailie James Campbell, the senior magistrate, at the Inch housing estate in November, in front of a crowd of interested spectators. The Capital also turned out in huge numbers to celebrate Victoria Day in May. Events were held across the city, with many choosing to light bonfires. In the city centre, large crowds gathered round a huge bonfire, set up in the open areas of the Grassmarket, which was believed to be the biggest in the city.